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Message: <blockquote data-quote="Sax" data-source="post: 2433126" data-attributes="member: 545530">The air puff test - if you want a crude analogy its a bit like a doing a random finger strip blood test - it may pick up warning signs of a problem but won't give the detail. The equivalent checks at the hospital are more involved but more accurate. For example a true pressure reading requires measuring cornea thickness (especially if short sighted) but the air puff test assumes average thickness. In addition to eye pressure you will usually play a game of spot-the-dot while wearing a pirate patch (field of vision test to detect areas of vision loss), and have the optic nerve discs checked for signs of glaucoma related damage (<a href="https://en.wikipedia.org/wiki/Optic_disc" target="_blank">https://en.wikipedia.org/wiki/Optic_disc</a>).Good link here for what might have driven a referral for what hopefully was just a false positive:<a href="https://www.guysandstthomas.nhs.uk/resources/patient-information/eye/being-a-glaucoma-suspect.pdf" target="_blank">https://www.guysandstthomas.nhs.uk/resources/patient-information/eye/being-a-glaucoma-suspect.pdf</a></blockquote>

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